Wichitphongsa, Wachira, Jessada Pochan, Donyarit Settasuwacha, and Nattaporn Nawakitrangsan. 2018. “Development of Fuzzy Random Utility Model for Travel Mode Choice by Rail Transport of Tourist in ASEAN Economic Community: A Case Study of Double-Track Rail Link Den Chai - Chiang Rai”. Parichart Journal 31 (3):185-97. https://so05.tci-thaijo.org/index.php/parichartjournal/article/view/147408.